EP 2634091 B1 20170315 - Helicopter blade retention composite yoke
Title (en)
Helicopter blade retention composite yoke
Title (de)
Joch aus Faserverbundwerkstoff für eine Hubschrauberrotorblattbefestigung
Title (fr)
Joug composite de retenue de pales d'hélicoptère
Publication
Application
Priority
US 201213407113 A 20120228
Abstract (en)
[origin: EP2634091A1] A rotary wing aircraft yoke (40) is provided including an arcuate medial portion (42). A pair of arms (44a, 44b) extends from the medial portion (42) and each terminates in a distal end (46a, 46b). The yoke (40) is made from multiple plies of glass and graphite fibers of varying orientations. The number of graphite plies increases along each arm from adjacent the medial portion (42) to the distal ends (46a, 46b).
IPC 8 full level
B64C 27/48 (2006.01)
CPC (source: EP US)
B64C 27/48 (2013.01 - EP US); Y10T 156/1052 (2015.01 - EP US)
Citation (examination)
US 4585393 A 19860429 - HIBYAN EDWARD S [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2634091 A1 20130904; EP 2634091 B1 20170315; US 2013224022 A1 20130829; US 9308992 B2 20160412
DOCDB simple family (application)
EP 12199470 A 20121227; US 201213407113 A 20120228